Tech News: FiTech’s Composite EFI System for Cathedral Port LS

FiTech made a name for itself offering an affordable, self-learning throttle body EFI system and now the company has upped the ante with the Ultimate Torque LS composite intake kit. Previously, FiTech offered a fabricated sheet aluminum intake for multipoint EFI use on LS engines. While this system works well, it takes aim at concentrating on peak horsepower. This new composite kit focuses on the very affordable street LS engines using cathedral-port heads.

The low-profile manifold mounts a 92mm, cable-actuated throttle body. The system will come fully equipped with 45 lb-hr injectors (at 58 psi), a fuel rail, and a complete wiring harness that is configurable for either EV1 or EV6 injector connectors. FiTech’s self-learning software will control the fuel with more tuner input for these multi-point systems. As an added bonus, you can choose from several versions including optional automatic transmission control for either the 4L60E or 4L80E families of transmissions.

The self-learning EFI is easily tuned with a simple hand-held monitor and offers sequential fuel and spark control with individual cylinder trim features and is compatible with both 24x and 58x engines. In addition, there’s a provision for user-configurable dual fan controls. The Ultimate Torque LS Composite FiTech is a great addition to a budget LS conversion.

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The Ultimate Torque Composite LS manifold offers longer runner lengths compared to the shorter sheetmetal FiTech version, which will make more useable power in the midrange where most street engines live.The LS Composite system comes with a fuel pressure regulator that maintains the proper pressure, along with injectors, fuel rail, and a complete harness and controller.We tested this new composite manifold on Car Craft’s 6.0L Iron Maiden, making 532 hp using a pair of TFS heads and a Comp camshaft with 227 degrees at 0.050-inch duration.